Power users who love tweaks.
: Official support for the A91 stopped at Android 11, but custom ROMs can bring the device up to Android 13 or 14 , providing newer security patches and features. Debloated Experience
, many users find it impossible to apply a full custom ROM through standard methods. The Alternative: If you can't find a dedicated ROM, many users opt for GSI (Generic System Images)
Since the OPPO A91 does not have many device-specific official ROMs, users often rely on .
Since the Oppo A91 supports , you can install GSIs that mimic popular custom ROMs. These are often considered "better" than stock ColorOS for performance and customization:
